ubifs: Export xattr get and set functions

For fscrypto we need this function outside of xattr.c.

Signed-off-by: Richard Weinberger <richard@nod.at>
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index fe94300..0f8a3ec 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -1735,6 +1735,10 @@
 ssize_t ubifs_listxattr(struct dentry *dentry, char *buffer, size_t size);
 int ubifs_init_security(struct inode *dentry, struct inode *inode,
 			const struct qstr *qstr);
+int ubifs_xattr_set(struct inode *host, const char *name, const void *value,
+		    size_t size, int flags);
+ssize_t ubifs_xattr_get(struct inode *host, const char *name, void *buf,
+			size_t size);
 
 /* super.c */
 struct inode *ubifs_iget(struct super_block *sb, unsigned long inum);